Heating Processes

Question 1

Kinetic theory

Can be used to explain the different states of matter

Particles of solid, liquid and gas have different amounts if energy

• Relationship between energy, mass and specific heat capacity and temp change???

• what is specific latent heat of vaporisation?
• relationship between energy, mass and specific latent heat of vaporisation?
• what is specific latent heat of fusion?
• the equation for this?

• melting points of a solid and the boiling point of a liquid are affected by….

Answer 1

• E = mass x specific heat capacity x temp change
• specific latent heat of vaporisation is the amount of energy required to change the state of one kg of the substance from a liquid to a vapour with no change in temp
• E= mass x latent heat of vaporisation
• specific latent heat of fusion is the energy required to change 1kg of the substance from solid to a liquid with no temp change
• E= m x latent heat of fusion
• affected by… Impurities

Question 2

Energy transfers and efficiency

• energy can be….
• when energy is transferred only part of it may be… The rest is …..
• wasted energy is

Answer 2

• transferred usefully, stored or dissipated, but cannot be created or destroyed

• usefully transferred ….. Wasted
•